Piano bench



FIG. 1 is a front perspective view of a piano bench showing my new design;

FIG. 2 is a front elevation view of FIG. 1;

FIG. 3 is a rear elevation view of FIG. 1;

FIG. 4 is a right side elevation view of FIG. 1;

FIG. 5 is a left side elevation view of FIG. 1.

FIG. 6 is a top plan view of FIG. 1; and,

FIG. 7 is a bottom plan view of FIG. 1.

The broken lines depict environmental structures and form no part of the claimed design. 

CLAIM The ornamental design for a piano bench, as shown and described. 